Results 161 to 170 of about 16,021,980 (396)

Digital computing cardiotachometer [PDF]

, 1973
A tachometer is described which instantaneously measures heart rate. During the two intervals between three succeeding heart beats, the electronic system: (1) measures the interval by counting cycles from a fixed frequency source occurring between the ...
Rasquin, J. R., Smith, H. E., Taylor, R. A.   +2 more
core   +1 more source

Comprehensive evaluation of machine learning algorithms for predicting sleep–wake conditions and differentiating between the wake conditions before and after sleep during pregnancy based on heart rate variability

, 2023
Xue Li, Chiaki Ono, Noriko Warita, Tomoka Shoji, Takashi Nakagawa, Hitomi Usukura, Zhiqian Yu, Yuta Takahashi, Kei Ichiji, Norihiro Sugita, Natsuko Kobayashi, Saya Kikuchi, Ryoko Kimura, Yumiko Hamaie, Mizuki Hino, Yasuto Kunii, Keiko Murakami, Mami Ishikuro, Taku Obara, Tomohiro Nakamura, Fuji Nagami, Takako Takai, Soichi Ogishima, Junichi Sugawara, Tetsuro Hoshiai, Masatoshi Saito, Gen Tamiya, Nobuo Fuse, Susumu Fujii, Masaaki Nakayama, Shinichi Kuriyama, Masayuki Yamamoto, Nobuo Yaegashi, Noriyasu Homma, Hiroaki Tomita   +34 more
openalex   +1 more source

Time dependence of heart rate variability during treadmill running [PDF]

, 2022
Lars Brockmann, Hanjie Wang, Kenneth J. Hunt   +2 more
openalex   +1 more source

Prediction of Myasthenia Gravis Worsening: A Machine Learning Algorithm Using Wearables and Patient‐Reported Measures

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Myasthenia gravis (MG) is a rare disorder characterized by fluctuating muscle weakness with potential life‐threatening crises. Timely interventions may be delayed by limited access to care and fragmented documentation. Our objective was to develop predictive algorithms for MG deterioration using multimodal telemedicine data ...
Maike Stein, Haoqi Sun, Sophie Lehnerer, Lea Gerischer, Maximilian Mönch, Christian Meisel, Andreas Meisel, Pushpa Narayanaswami   +7 more
wiley   +1 more source

Heart Rate Variability, Deceleration Capacity of Heart Rate, and Death: A Veteran Twins Study

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background Autonomic function can be measured noninvasively using heart rate variability (HRV), which indexes overall sympathovagal balance. Deceleration capacity (DC) of heart rate is a more specific metric of vagal modulation.
Minxuan Huang, Amit J. Shah, Rachel Lampert, Donald L. Bliwise, Dayna A. Johnson, Gari D. Clifford, Richard Sloan, Jack Goldberg, Yi‐An Ko, Giulia Da Poian, Erick A. Perez‐Alday, Zakaria Almuwaqqat, Anish Shah, Mariana Garcia, An Young, Kasra Moazzami, J. Douglas Bremner, Viola Vaccarino   +17 more
doaj   +1 more source

Hospital Readmission After Traumatic Brain Injury Hospitalization in Community‐Dwelling Older Adults

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the risk of hospital readmission after an index hospitalization for TBI in older adults. Methods Using data from the Atherosclerosis Risk in Communities (ARIC) study, we used propensity score matching of individuals with an index TBI‐related hospitalization to individuals with (1) non‐TBI hospitalizations (primary analysis)
Rachel Thomas, Connor A. Law, Joan A. Casey, Thomas Mosley, Rebecca F. Gottesman, Ramon Diaz‐Arrastia, Holly Elser, Andrea L. C. Schneider   +7 more
wiley   +1 more source

Interaction effect of obstructive sleep apnea and periodic limb movements during sleep on heart rate variability [PDF]

, 2019
Xiao Li, Naima Covassin, Junying Zhou, Ye Zhang, Rong Ren, Linghui Yang, Lu Tan, Taomei Li, Pei Xue, Xiangdong Tang   +9 more
openalex   +1 more source

Heart rate variability: origins, methods, and interpretive caveats.

Psychophysiology, 1997
G. Berntson, J. Thomas Bigger, D. Eckberg, P. Grossman, P. Kaufmann, M. Malik, H. Nagaraja, S. Porges, J. Saul, P. Stone, MAUROTS W. VAN DER MOLEN   +10 more
semanticscholar   +1 more source

Lessons Learned From a Delayed‐Start Trial of Modafinil for Freezing of Gait in Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Freezing of gait (FOG) in people with Parkinson's disease (PwPD) is debilitating and has limited treatments. Modafinil modulates beta/gamma band activity in the pedunculopontine nucleus (PPN), like PPN deep brain stimulation. We therefore tested the hypothesis that Modafinil would improve FOG in PwPD.
Tuhin Virmani, Lakshmi Pillai, Reid D. Landes, Aliyah Glover, Shannon Doerhoff, Jennifer Kleiner, Mitesh Lotia, Rohit Dhall, Edgar Garcia‐Rill   +8 more
wiley   +1 more source

Weaning reduces body temperature and heart rate, and increases heart rate variability in ewes

Smart Agricultural Technology
Weaning elicits strong responses in ewes and lambs, which makes it a significant welfare concern; however, limited and sometimes contradictory information is available on the physiological responses of dams at weaning.
José A. Abecia, Francisco Canto, Irene Viola, Isabella Manenti, Paola Toschi, Silvia Miretti   +5 more
doaj   +1 more source